Systems down and freezing of Account

Yesterday had to be an embarrassing moment at Spur after I took my family out and ate our meal when it come to pay my bank has decline my payment reason being the system is down and I cannot do transactions . I spend my R30 airtime calling the Customer service informing them about the situation all they there is nothing they can do and I have to explain that to the manager dobyou know how degrading that is very imbarassing I had to leave my I'd and my work card to prove that I am not ******** them . If this how are we going to do business Iam out.